Cybil m



Staple- 0* Unirse Srn'frns vPnrnnifr lrrr-inn;

TQ ally/Item' fit may concern:

et fknowngthatl, CYRIL M. JANSKY, of u. Sable, in the lcounty of losco and State of Michigan, have invented a new andlrnproved Carpet yStretcher and Tacker, .of which .the

L., -iollowingis-a-full,clear, and exact description.

y,'lhis,invention relates to improvements in carpet stretchers and tackers, and lthe ob? ject is to provide a stretcher and taclrer or driver .so Aconstructed that after drivackor'staple the taeking mechanutomatica'lly movedto the posi- .s maf-111,1

tion ford iving thenextrtaok or staple, vthus providinggmeans for successively driving sev- 4 e allgtaclis orstaples ,without moving. the treteher iroin itsqiesiticmK h1Iwfill describe a rcarpet stretcher and tacker "eittodyingmy invention and then point out the novel'features in .the appended claims.

n ,which similar'characters `oi reference indicate corresponding parts in all the views.

Y Figure sa ,perspective viewotV a carpet stretche rand tacker embodying my invenionj. ,l `ig.' 2,isa vertical section'of the tackechanism.,QFig.4 3 is asection on the line yofp-F-ig. 2. .i lig. 4 is a section 'on the 3eI .linedzcof Eig. 2,and Fig. 5. is aperspective iviewo'f a series of Afastening-staples employedffholder 21,-extended rearward from the casing.

v,hel-.tackerfcarrying f 'rame Ycomprises a bar 1 hav gfvananm 2 extended forward from each lits ,ends',and. the ends of these arms 2ar'e proyided-withfspikes 3, designed to'be `aok; ay be folded. 'closely against the ef. Stretcher '-1 rack a is 4designed i to be movedl relatively y to; a stretcher-bar ,havin g hooks ,dongits under side'designed to engage -in-.a carpet.: D,E*Xte'ndedp forward from this bar @is aguideway7fin which the rack moves. .The raclyis :moved longitudinally by means got afllever ,8, adapted t en gage. with the teeth :f5.or0fstl1e ;rackgand jlhaving ,a `link connection, 9,

-if n.'itlt. 1i1.as .lllestendednpward'from the bar 5..

livoted between upward projections at'fthe Reference isltobe had to the accompanying wings, forming a part of this specification, l

" l CARPET erm-:Toename TAC'KER.

srncrrcArIoN- arming part of Letters Patent .appumionnea-December28,1897. serialneoassz. (rommel.)

No. eo4,es7,aatea May 31, ieee,

lforward end of the guideway A7j is a dog 11, designed to engage with the teeth of the rackbar and prevent a backward movement...

The tacker or driverv comprises ai verticallymovable plunger 12, arrange. `yin' the ffrWa-rd portion of a easing 131' To prevent aj rotary motion of the plnnger'elatively tothe casing, the said plunger' is provided ongits opposite sides with longitudinal 'ribs 14, j'de'signed to engage channels 'in the casi-ng. A 'spring 15, arrangedbetween the upper portionlofthe casing and the head 16 of the plungenserves to return said plunger and hold it yieldingly in its` upwardposition, as indicated clearly in Fig. 2. In the lower portion of the casing 13 is secured a block- 17, the forward upper edge thestaples as theyvarejdriven, and coacting with this cutting edge is a cutting edge 18 on the lower endr of the plunger 12. f y

The staples used inthis machine each con sist of a' body portion 1'9 and prongs 20. -In the manufacture of the staples a series of themwill be stamped out and formed from one, strip of metal, and when formed the several staples of a strip will be connected at the middle of the body portion by a narrow neck 20a. This strip of staples is movable longitndinally'over the block 17, and the outer or rear. end of the strip is placed upon a curved In'op'eration one of the staples will be just forward `of the forward end of ,the block 17. Then by striking upon the upper end of the I plunger 12 the same willv be driven downward,

. forward' while one' is being severed and driven,

.l employ pins 22, which eXtenddownward at one severed and driven.v "As a means for feedfe'eding-bolt 23, movable longitudinally in an vopening formed in the casing 13 and normally held otward'by means 'of aspring 24; The

orward fendof this bolt is beveledv and is -of which terms a cirttingedgefor separating and its cutting edge coacting with the cutting edge of the block 17 will sever a staple at the eachside of the plunger andare adapted to i engage between two staples rearward of the l ting the strip of staples successively to the severing and driving Aposition I employ a roc designed to be engaged by a beveled shoulder on the inner side of the plunger', and from n the lower side of said bolt a spring-yielding Vsecured to the arms 2.

feeding-finger 2G extends downward and is designed to engage with the rear side of a staple.

Obviously when the plunger is forced downward the incline 25 will force the bolt23 rearward, and this of course will draw the linger 2G rearward through the space of the width of one staple. Then as the plunger moves forward the spring 2l will move the bolt 23 and the iinger 26 forward, and thus the strip of staples will be fed the distance of the width of one staple. The driving and tracking mechanism as so tar described, however, is not of my present invention.

I will4 new describe a means of carrying the tacking or driving device along the frame after the driving of a tack or staple. The casing 13 has an upwardly-extended portion 271it its rear end, and mounted in this casing portion 27 is a shaft 28, upon which isloosely mounted a gear-wheel 29, meshing with a rack 30, extended lengthwise of the frame l and The casing 13 is provided with openings at its opposite sides, so that the rack may pass through the same. A spring 3l has one end attached to the shaft 28, and the otherend of said spring is attached to a pin 32, extended from the gear-wheel 29. Rigidlyconnectcd to theshaft 28 is a ratchetwheel 33, yieldingly engaged by a dog 34, pi voted in the casing. This dog and ratchetwheel are designed to prevent a backward movement of the spring 3l during its winding by means of a key engaged with the outer angular end of the shaft 28.

Mounted to swing in tbc casing is adetentbar 34, the rear end of which is designed to be engaged byeither one of the stop-pins 35, extended forward from the gear-wheel 29, and the forward end of this detcnt-bar 34"' is in the line of movement of a tappet 3G on the plunger 2.

The operation of the device is follows: After dri ving the spikes 3 into the door near the base-board the hooks of the stretcher-bar 5 are engaged in the carpet. Then by moving the upper end of the lever 8 forward the stretcher-bar will be moved forward or toward the tacking device, and therefore stretch the carpet, so that its edge may be laid up close against the base-board. Then by striking the upper end ot' the plunger l2 with a hammer or mallet the said plunger will be forced downward and sever a staple, as bcfore described, and drive it through the carpet into the iloor. During this downward movement the tappet 3G will engage with and rock the detent-bz'ir lil. out ol' engagement with the pin 35. 'lhcn the spring 3l will rotate the gear-wheel 2t) and cause it to move along the rack Zit). Ofcourse as soon as the plunger -s released it will be forced upward by the spring, and the (intent-bar fit will'be moved. dl'iwnward to engage with vthe vnext pin 35 of the series and prevent further rotation ol' the wheel.

The detent-bar 3l may be moved downward by means of a spring 37, bearing at its lower cud upon the bar fit and at its upper end against the inner side of the top of the casing 13, and to hold this spring in place a pin 3S maybe extended from the bar through said spring and loosely through an opening in the top of the casing. Of course after each blow the tacking or driving device will be moved one step, and the distance of this movementmay of course be regulated bythe numbcrof pins employed--that is,whilc I have shown but two of these pins, which permits a half-rotation of the'wheel, four or more may be employed to permit only of a less rotation.

llaving thus described my invention, l claim as new and desire to secure by Letters atcntv l. A carpet-stretcher, comprising a frame, means for securing said trame to a floor, a stretching-bar for engaging with the carpet, means for moving said stretching-bar toward the frame, a tacking or staple-driving device mounted on said frame, and means for imparting a step-by-step motion to said device longitudinally of theframe, substantially as' specified.

2. A carpet-stretcher, comprising a frame having means for removably securing it to a floor, a stretching-bar, means for moving said stretching-bar toward the frame, a tack or staple driving mechanism comprising a vertically-movable plunger, a casing in which said plunger is arranged, a rack on the earpet-stretcher frame passing through said easing, a spring-operated gear in thecasing engaging with said rack, and means operated by a downward movement of the plunger for releasing the spring to allow it to move the tack or staple driving mechanism longitud inally of the frame, substantially as specified.

3. A carpet-stretcher, comprising a frame adapted to be removably secured to a floor, means connected with said frame for stretching a carpet toward the same, a rack extended longitudinally of said frame, a driving mechanism comprising a vertically-movable plunger, a easing in which said plunger is ar-v ranged, a gear-wheel in the casing engaging with the rack, a shaft upon which said gearwheel is loosely mounted, a spring connected at one end with said shaft and at the other end with the gear-wheel, a stop-pin extended from the gear-wheel, a swinging datent-bar with which said stop-pin is designed to engage, and a tappet on the plunger for engagingr with vsaid detent-bar, to move it out of engagement with the pin upon the downward movement of the plunger, substantially as specified.

Il. 'lho combination with a carpet-stretcher comprising a frame adapted to be removably secured to a lloor, of a driving mechanism comprising a easing, a plunger operating ver- IOO IIO

tically in said casinggand having a euttin.@ .,-fA

edge for severing staples from a strip, means operated in onedirection bythe plunger for feeding 'the strip, a spring-operated gearwheel in the easing, a rack on ythe carpetlstieteher frame with which said gear-wheel engages,stoppins extended forward from said gear-Wheel, a datent-bar mounted to swing in 'the easing `and adapted to be engaged by either one of the stop-pins, and a taet on lo the plunger for engaging the said de lit-bar to move it out of engagement with the stoppin, substantialiy as s'pecied.

CYRIL' M. JANSKY.

Witnesses:

A. D. COLLINS, ANNE STUART DUNCAN. 

